Doubt from integration

kindly help @Sneha_2021 @Gaurav_2020_3 @Ayush_2020_3 @Achyut_2020

First 2 parts are easy

Do you know answer for third part

ya bro, even I got first and second part, I wanted the third part bro...
btw I don't know the answer bro @Ayush_2020_3

Partial fraction nd 1 degre term neglect it
\dfrac{a}{x} type


thank you @Sneha_2021 @Ajay_2020_1 @Ayush_2020_3

Please mark ajay approach as solution @Venkat_2020

kindly help @Sneha_2021 @Ayush_2020_3 @Ajay_2020_1 @Gaurav_2020_3 @Achyut_2020

Hint is graph